The city emblem was adopted on May 5th 1937 but
there is no flag law.
The blue flag has a white city emblem in the center.
The city emblem depicts a stone boiler = kamaishi in the center
surrounded by a coastal breakwater and an iron and a steel.
It represents Port Kamaishi, a city of steel industry and the
promotional development of the city.
Kamaishi City General Affairs section says they use a blue
official flag at the city hall building and the white flag with a red emblem
is variant.Nozomi Kariyasu, 17 October 2014